Possible Clues:

• Gigantic beast in Job, though he's a fairy in Shakespeare
• What has me pinned back by the two large animals? One only
• How to be a male fly-by-night to a large extent
• A monster, even though he's a colleague of five
• Can he be a great fly-by-night
• Hebe arranged to put insect behind great beast
• Huge animal as from the Bible
• Monstrous beast (Job)
• Giant live male insect
• Great beast seen by the two people round eastern border